计算;(1),(-8-7i)(-3i) (2),(4-3i)(-5-4i) (3),2i/2-i (4),2+

问题描述:

计算;(1),(-8-7i)(-3i) (2),(4-3i)(-5-4i) (3),2i/2-i (4),2+
(4).2+i/7+4i

1.(-8i+7)/3
2.(4-3i)(-5+4i)/25+16=(-8+31i)/41
3.2i(2+i)/5=4i-2/5
4…………